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Auditory development in the mouse: Structural maturation of the middle ear

✍ Scribed by Dr. Musan Huangfu; James C. Saunders

Publisher: John Wiley and Sons
Year: 1983
Tongue: English
Weight: 844 KB
Volume: 176
Category: Article
ISSN: 0362-2525
DOI: 10.1002/jmor.1051760302

No coin nor oath required. For personal study only.

✦ Synopsis

The development of middle-ear structures in the mouse was examined in nine groups of pups between 1 and 45 days of age. The area of the tympanic membrane (pars tensa and pars flaccida), the length of the lever arms of the malleus and incus, the surface area of the oval window, and the volume of the bulla all showed systematic changes during neonatal life. The area of the oval window reached maturity first and the lever arms achieved 90% of their adult size on day 11. The tympanic membrane achieved the same criterion on day 18. These data help us further to understand the processes that contribute to the functional ontogeny of the middle ear.

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